http://dbpedia.org/resource/George_Halsey_Perley__Tenure__4 <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> rdf:type <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> dbpedia-owl:TimePeriod dbpedia-owl:Tenure dbpedia-owl:predecessor <http://dbpedia.org/resource/Thomas_Christie_Jr.> dbpedia-owl:successor <http://dbpedia.org/resource/Peter_Robert_McGibbon> data from the linked data cloud